. Electric railway journal . owing to occasional veryheavy days. The largest mileage recorded recently was1400 for motor cars and trailers. On July 4, 1912, therewere 1306 miles run, made up of 887 motor and 419 trailer costs during the past year are given in the accompanyingtable. These include a large expense for electrical ma-terial for the cars due to the armature changes mentionedhereafter. The figures are based on the total car mileageincluding trailer operation. Erie Railroad, Rochester DivisionCost of Electric Service in 1912 Approximate Cost inCents per Car Mile Supervision and inspec
. Electric railway journal . owing to occasional veryheavy days. The largest mileage recorded recently was1400 for motor cars and trailers. On July 4, 1912, therewere 1306 miles run, made up of 887 motor and 419 trailer costs during the past year are given in the accompanyingtable. These include a large expense for electrical ma-terial for the cars due to the armature changes mentionedhereafter. The figures are based on the total car mileageincluding trailer operation. Erie Railroad, Rochester DivisionCost of Electric Service in 1912 Approximate Cost inCents per Car Mile Supervision and inspection 1-80 Train crews Electrical energy Expenses of signal operation, stations, etc., incident to elec-trical operation All other expenses of operation and maintenance Total The most important changes in the equipment of the roadhave been the addition of two new cars, the rebuilding ofthe armatures of the motors and the application of steadystrains on all brackets. During the coming spring the over-. Erie Electrification—Standard Car at Avon Station head construction will be improved by the addition of a steelcontact wire. The new cars are 15 ft. -longer than the original have steel underframes with built-up girder center June 7, 1913.] ELECTRIC RAILWAY JOURNAL 1001 sills and trussed side sills. The sides and roof arc of total weight is 117,000 lh., or 850 lh. per seated deep center sills necessitate a different arrangement ofapparatus under the car body, the transformer being placedon one side of the center sill and the remainder of the aux-iliary equipment on the other side. A larger size of trans-former is used and provisions have been made for installingventilating fans for the motors, but the fans will not be putin at present. The motors on the new cars are of the West-inghouse 132-F type. These differ from the 132-A typemotors used on the other cars in that the compensatingwinding is short-circuited on itselfins
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